Wikidata and Wikipedia

ASECS 2025, DH Caucus Session

Alice McGrath

2025-04-05

Outline

  1. Overview of Wikidata
  2. Structure of Wikidata statements
  3. Queries and other uses

What is Wikidata?

“A collaboratively edited multilingual knowledge graph hosted by the Wikimedia Foundation”

Legend Cross Domain Geography Government Life Sciences Linguistics Media Publications Social Networking User Generated museums-in-italy Italia... dbpedia DBpedia geonames-semantic-web GeoNam... bioportal-ogmd Ontolo... bioportal-bdo Bone D... bioportal-canco Cancer... bioportal-csp CRISP ... bioportal-doid Human ... bioportal-efo Experi... bioportal-hp_x1 Human ... bioportal-icd9cm Intern... bioportal-icpc2p ICPC-2... bioportal-mccl_x1 Cell l... bioportal-mdr MedDRA bioportal-medlineplus Medlin... bioportal-mesh-owl MESH T... bioportal-mp Mammal... bioportal-msh Medica... bioportal-natpro Natura... bioportal-ncit NCI Th... bioportal-ndfrt Nation... bioportal-nif NIFSTD bioportal-omim Online... bioportal-ontoorpha Orphan... bioportal-rcd Read C... bioportal-snomedct SNOMED... bioportal-sopharm Sugges... ECNU-GISer 《老子》译本... bioportal-amino-acid Amino ... bioportal-cdao Compar... bioportal-chebi Chemic... bioportal-lnc Logica... bioportal-nddf Nation... bioportal-npo NanoPa... bioportal-rxnorm RxNORM bioportal-snpo SNP-On... bioportal-so_x1 Sequen... bioportal-vandf VANDF bioportal-idomal Malari... bioportal-aao Amphib... bioportal-acgt Cancer... bioportal-adw Animal... bioportal-aeo Anatom... bioportal-aero Advers... bioportal-bao BioAss... bioportal-bfo Basic ... bioportal-birnlex BIRNLex bioportal-bootstrep Gene R... bioportal-bt BioTop bioportal-bto BRENDA... bioportal-cao CAO bioportal-cco Cell C... bioportal-cheminf Chemic... bioportal-clo Cell L... bioportal-cogpo Cognit... bioportal-cst COSTART bioportal-ctcae Common... bioportal-ddi Ontolo... bioportal-ecg Electr... bioportal-ehda Human ... bioportal-envo Enviro... bioportal-ep Cardia... bioportal-ero eagle-... bioportal-ev eVOC (... bioportal-fbbt Drosop... bioportal-fbsp Fly ta... bioportal-flu Influe... bioportal-gfo-bio Genera... bioportal-go_x1 Gene O... bioportal-go_x2 Gene O... bioportal-gro_x2 Gene R... bioportal-hao Hymeno... bioportal-hl7 Health... bioportal-hpio Host P... bioportal-iao Inform... bioportal-icf_x1 Intern... bioportal-icnp Intern... bioportal-ido Infect... bioportal-idobru Brucel... bioportal-iev Event ... bioportal-imr Molecu... bioportal-ino Intera... bioportal-mf Mental... bioportal-mfoem Emotio... bioportal-miro Mosqui... bioportal-ncbitaxon NCBI o... bioportal-nemo_x1 Neural... bioportal-nif_cell NIF Cell bioportal-nif_dysfunction NIF Dy... bioportal-nigo Neural... bioportal-nmr NMR-in... bioportal-oae Ontolo... bioportal-obi Ontolo... bioportal-oboe-sbc OBOE SBC bioportal-odgi Ontolo... bioportal-ogi Ontolo... bioportal-ogms Ontolo... bioportal-omrse Ontolo... bioportal-ontodm Ontolo... bioportal-opl Ontolo... bioportal-pdq Physic... bioportal-pedterm Pediat... bioportal-phare PHARE bioportal-pr PRotei... bioportal-rid RadLex bioportal-rnao RNA on... bioportal-sao Subcel... bioportal-sdo Sleep ... bioportal-sio Semant... bioportal-sso Syndro... bioportal-tao Teleos... bioportal-teo Time E... bioportal-tmo Transl... bioportal-uberon Uber a... bioportal-vhog verteb... bioportal-vo Vaccin... bioportal-who WHO Ad... bioportal-xao Xenopu... bioportal-zfa Zebraf... mexico MExiCo isocat ISOcat metashare MetaSh... olia OLiA provenanceweb proven... brown-corpus-in-rdf-nif Brown ... universal-dependencies-treebank-persian Univer... bio2rdf-chembl Bio2RD... meducator mEduca... statusnet-orangeseeds-org status... statusnet-deuxpi-ca status... statusnet-soucy-cc status... statusnet-status-net status... addgene Addgene klappstuhlclub Klapps... bioportal-neomark Neomar... bioportal-dc_cl Dendri... bioportal-cl Cell type bioportal-ma Mouse ... bioportal-air AI/RHEUM bioportal-bho Bleedi... bioportal-cmo Clinic... bioportal-cogat Cognit... bioportal-cpt Curren... bioportal-ctx Cerebr... bioportal-ehdaa Human ... bioportal-fhho Family... bioportal-hcpcs HCPCS bioportal-hlth_indics HEALTH... bioportal-icd10 ICD10 bioportal-icd10cm ICD10CM bioportal-icd10pcs ICD-10... bioportal-icpc Intern... bioportal-mcbcc Breast... bioportal-mccl Cell l... bioportal-mi Protei... bioportal-mmo Measur... bioportal-mpath Mouse ... bioportal-mthch Metath... bioportal-omit Ontolo... bioportal-pato Phenot... bioportal-pma PMA 2010 bioportal-shr Studen... bioportal-tm-signs-and-sympts Tradit... bioportal-vt Verteb... upper-ontology Super ... freebase 1989sh... opencyc OpenCyc universal-dependencies-treebank-indonesian Univer... bioportal-chem2bio2owl System... bioportal-dikb-evidence DIKB-E... bioportal-ixno IxnO bioportal-rs Rat St... bioportal-sbo System... finnish-municipalities Finnis... libver Public... dbpedia-el DBpedi... bioportal-eo Plant ... bioportal-fbcv FlyBas... bioportal-fda-meddevice FDA Me... bioportal-lipro Lipid ... bioportal-mddb Master... bioportal-xco Experi... npm NPM wordnet-rdf WordNe... lemonuby lemonUby lexvo Lexvo w3c-wordnet WordNe... muninn-world-war-i Muninn... linkedgeodata Linked... ww1lod World ... statusnet-lydiastench-com status... personal-homepages Person... statusnet-fragdev-com status... statusnet-jonkman-ca status... statusnet-quitter-se status... statusnet-russwurm-org status... statusnet-skilledtests-com status... ntnusc NTNU s... dewey_decimal_classification Dewey ... lcsh Librar... radatana Rådata... taxonconcept TaxonC... bbc-wildlife-finder BBC Wi... eunis Europe... fishes-of-texas Fishes... geospecies GeoSpe... umbel UMBEL ... uniprot UniProt gesis-thesoz TheSoz... stw-thesaurus-for-economics STW Th... opendatacommunities-transparency-impact-indicators-troubled-families openda... reference-data-gov-uk refere... statistics-data-gov-uk statis... ceo Linked... cht Cultur... swefn-rdf SweFN-RDF statusnet-uni-siegen-de status... bioportal-tok TOK_On... olia-discourse OLiA D... omwn-fas Persia... linklion LinkLi... bio2rdf-drugbank Bio2RD... dnb-gemeinsame-normdatei Gemein... eprints-harvest-rkbexplorer ePrint... l3s-dblp DBLP i... rkb-explorer-acm Associ... rkb-explorer-dblp DBLP C... rkb-explorer-dotac dotAC ... rkb-explorer-oai Open A... viaf VIAF: ... universal-dependencies-treebank-portuguese-bosque Univer... apertium-rdf-es-ast Aperti... babelnet BabelNet lexinfo lexinfo apertium-rdf-es-an Aperti... rkb-explorer-courseware Resili... lingvoj lingvo... rkb-explorer-budapest Budape... rkb-explorer-citeseer CiteSe... rkb-explorer-cordis Commun... rkb-explorer-curriculum ReSIST... rkb-explorer-eprints ePrint... rkb-explorer-irit Univer... rkb-explorer-laas LAAS-C... rkb-explorer-newcastle Univer... rkb-explorer-rae2001 Resear... rkb-explorer-southampton School... rkb-explorer-wordnet WordNe... southampton-ecs-eprints ECS So... zaragoza_turruta zarago... zaragoza-datosabiertos Datos ... eagle-i-jsu eagle-... bioportal-ocre Ontolo... bioportal-swo Softwa... bioportal-vivo VIVO rkb-explorer-kisti Korean... rkb-explorer-eurecom Instit... rkb-explorer-ft France... rkb-explorer-ibm IBM Re... rkb-explorer-ieee IEEE P... rkb-explorer-italy Divers... rkb-explorer-jisc UK JIS... rkb-explorer-lisbon Fundaç... rkb-explorer-pisa Univer... rkb-explorer-resex ReSIST... rkb-explorer-roma Univer... rkb-explorer-ulm Univer... rkb-explorer-wiki ReSIST... semantic-web-dog-food Semant... statusnet-shnoulle-net status... statusnet-belfalas-org status... statusnet-gegeweb-org status... statusnet-planet-libre-org status... statusnet-postblue-info status... statusnet-spip-org status... bioportal-atmo Africa... bioportal-bro_x1 Biomed... bioportal-ontodt Ontolo... bioportal-sep Sample... chemdb-phaseTransition chemdb... opendataec Open D... wikidata Wikidata yago YAGO wiktionary-dbpedia-org wiktio... bio2rdf-hgnc Bio2RD... bio2rdf-ndc Bio2RD... bio2rdf-pharmgkb Bio2RD... bio2rdf-pubmed Bio2RD... ASCDC-Qing-Secret-Societies Datase... ASCDC-DQOT Databa... ASCDC_-_DNB Databa... getty-aat Art & ... statusnet-20100-org status... statusnet-ced117-net status... statusnet-imirhil-fr status... statusnet-keuser-fr status... statusnet-scoffoni-net status... Bioportal Covid1... opendatacommunities-households-social-lettings-general-needs-lettings-prp-number-bedrooms openda... geodomainwn geodom... traditional-korean-medicine Tradit... SCBG-Data SCBG Data bio2rdf-ctd Bio2RD... UniProt UniProt 2000-us-census-rdf 2000 U... dbtune-musicbrainz DBTune... education-data-gov-uk educat... flickr-wrappr flickr... fu-berlin-dailymed DailyMed fu-berlin-dblp DBLP B... fu-berlin-diseasome Diseasome fu-berlin-drugbank DrugBank fu-berlin-eurostat Eurost... fu-berlin-project-gutenberg Projec... fu-berlin-sider SIDER:... italian-public-schools-linkedopendata-it Italia... linkedmdb Linked... nytimes-linked-open-data New Yo... rdf-book-mashup RDF Bo... revyu Revyu.... tcmgenedit_dataset TCMGen... transport-data-gov-uk transp... uk-legislation-api UK Leg... world-factbook-fu-berlin World ... w3c W3C apache apache eea-rod EEA Re... gutenberg Projec... hellenic-fire-brigade Hellen... hellenic-police Hellen... lod2-project-wiki LOD2 P... myopenlink-dataspaces myopen... rdfohloh RDFohloh semanticweb-org semant... universal-dependencies-treebank-hungarian Univer... ldt@library Linked... statusnet-chickenkiller-com status... ecs School... rkb-explorer-deploy DEPLOY... rkb-explorer-epsrc epsrc rkb-explorer-nsf Nation... rkb-explorer-risks RISKS ... semantictweet Semant... geographic-names-information-system-gnis Geogra... data-gov-uk-time-intervals data.g... london-gazette The Lo... universal-dependencies-treebank-norwegian Univer... corporate-body Corpor... eurovoc EuroVoc linked-edgar Linked... sec-rdfabout U.S. S... my-family-lineage My Fam... educationalprograms_sisvu Educat... rism-authorities RISM A... eu-institutions Instit... eu-agencies-bodies EU Age... ordnance-survey-linked-data Ordnan... john-goodwins-family-tree John G... rkb-explorer-deepblue Deep B... statusnet-1w6-org status... statusnet-chromic-org status... statusnet-cooleysekula-net status... statusnet-davidhaberthuer-ch status... statusnet-dtdns-net status... statusnet-fcac-com status... statusnet-fcestrada-com status... statusnet-gomertronic-com status... statusnet-ilikefreedom-ro status... statusnet-legadolibre-com-ar status... statusnet-linuxwrangling-com status... statusnet-macno-org status... statusnet-maymay-net status... statusnet-morphtown-de status... statusnet-mrblog-nl status... statusnet-ourcoffs-org-au status... statusnet-piana-eu status... statusnet-qdnx-org status... statusnet-rainbowdash-net status... statusnet-somsants-net status... statusnet-ssweeny-net status... statusnet-tekk-com-ar status... statusnet-thelovebug-org status... statusnet-thornton2-com status... statusnet-timttmy-co-uk status... lemonwiktionary LemonW... ASCDC-NMMBA-Fish-Otoliths The Di... crowdsourcing-fb crowds... linked-open-data-of-ecology Linked... taiwan-geographic-names Taiwan... Querolus Querol... LemmaBank LiLa L... rkb-explorer-fun fun biblioteca-nacional-escolar-bnescolar Biblio... didactalia Didact... bio2rdf-goa Bio2RD... bio2rdf-taxonomy Bio2RD... cz-vavai-funding-providers State ... statusnet-alexandrefranke-com status... statusnet-bka-li status... statusnet-spraci-org status... osm-semantic-network OSM Se... fu-berlin-cordis Commun... omwn-fra WOLF W... Naturopathy Naturo... bioportal-mat Minima... red-uno-internacional-santillana Red Un... mlsa MLSA -... universal-dependencies-treebank-danish Univer... gold Genera... bioportal-repo Reprod... opendatacommunities-societal-wellbeing-deprivation-imd-rank-2007 openda... statusnet-hackerposse-com status... statusnet-lebsanft-org status... statusnet-recit-org status... dbpedia-fr DBpedi... dbpedia-ja DBpedi... dbpedia-nl DBpedi... LASLA LASLA ... AugustiniConfessiones August... CompHistSem Comput... CorpusFibonacci Corpus... DanteLatinLoanwords Dante ... EtymologicalDictionaryofLatin Etymol... IGVLL Index ... IndexThomisticusTreebank Index ... LatinAffectus LatinA... LatinWordnetLiLa Latin ... cz-ovm Instit... cz-ic Czech ... cz-ruian Regist... rkb-explorer-photos photos bioportal-ehdaa2 Human ... bioportal-pmr Physic... apertium-rdf-eo-fr Aperti... cz-vavai-tenders Tender... cz-vavai-programmes R&D Pr... bioportal-hugo HUGO temple-ov-thee-lemur-datasets Temple... foodpedia FOODpe... agrovoc AGROVOC edublogs Edublogs productontology Produc... diavgeia Diavgeia enakting-crime EnAKTi... kallikratis-municipalities Kallik... linked-eurostat Linked... nuts-geovocab NUTS (... intervalue interv... archiveshub-linkeddata Archiv... uk-postcodes UK Pos... cz-contracts Regist... uis-linked-data UNESCO... bfs-linked-data Bundes... ecb-linked-data Europe... fao-linked-data Food a... frb-linked-data Federa... imf-linked-data Intern... oecd-linked-data Organi... the-eurostat-linked-data The Eu... transparency-linked-data Transp... world-bank-linked-data World ... eprtr Europe... eionet-rdf EIONET... telegraphis Telegr... openlylocal Openly... opencorporates OpenCo... bioportal-fma Founda... eagle-i-hawaii eagle-... omwn-cow Chines... bio2rdf-homologene Bio2RD... bio2rdf-ncbigene Bio2RD... qboairbase QBOAir... thesesfr theses.fr idreffr IdRef:... tds TDS bio2rdf-genage Bio2RD... chat-game-corpus Chat G... fiesta FiESTA lobid-resources lobid-... b3kat B3Kat ... lobid-organisations lobid-... open-library Open L... statusnet-panda-id-au status... statusnet-tschlotfeldt-de status... statusnet-doomicile-de status... bioportal-carelex CareLex universal-dependencies-treebank-hindi Univer... statusnet-progval-net status... ineverycrea Inever... ineverycrea-argentina Inever... fu-berlin-stitch STITCH... interactivemaps-gnoss Intera... research-data-gov-uk resear... business-data-gov-uk busine... miguiadeviajes-gnoss Mi Guí... webnmasunotraveler webnma... bio2rdf-mgi Bio2RD... bio2rdf-omim Bio2RD... universal-dependencies-treebank-croatian Univer... bioportal-bila Bilate... bioportal-cno Comput... bioportal-jerm SysMO-... bioportal-mo MGED O... bioportal-oboe OBOE bioportal-tads Tick g... bioportal-tgma Mosqui... bioportal-unitsontology Units ... bioportal-uo Units ... bioportal-vao Verteb... linked-nuts Linked... iwn IWN simple SIMPLE opendatacommunities-homelessness-households-accommodated-temporary-housing-types openda... universal-dependencies-treebank-uyghur Univer... bio2rdf-sgd Bio2RD... clld-wals CLLD-WALS bio2rdf-affymetrix Bio2RD... bio2rdf-interpro Bio2RD... bio2rdf-wormbase Bio2RD... yso YSO - ... ysa YSA - ... linked-logainm Linked... bioportal-bcgo Breast... bioportal-sitbac Situat... eagle-i-hunter-cuny eagle-... national-library-of-greece-authority-records Nation... environment-data-gov-uk enviro... eagle-i-utep eagle-... pokepedia-fr Poképé... data-incubator-pokedex Pokede... bioportal-fypo Fissio... bioportal-apo Ascomy... bioportal-spto Solana... CoLChina_sp2000 Catalo... universal-dependencies-treebank-basque Univer... dm2e DM2E judaicalink Judaic... twc-hub Instan... linkedcrowdsourceddata Linked... openmobilenetwork OpenMo... apertium-rdf-es-gl Aperti... the-living-lod-cloud The Li... twc-logd TWC: L... publications_office_authority_tables Public... Prior_Panel Prior ... wikilinks-rdf-nif Wikili... eagle-i-upr eagle-... statusnet-kaimi-cc status... statusnet-atari-frosch-de status... statusnet-schiessle-org status... bioportal-mfo Medaka... bioportal-wbbt C. ele... Swift Swift ... prospects-and-trends-gnoss Prospe... dblp-deusto-gnoss DBLP R... english-index-of-multiple-deprivation-score-2010 Englis... odc-lsoa Open D... bio2rdf-iproclass Bio2RD... cz-czso-demography-in-regions-czech-republic-age-categories Number... chemdb-basicInfo chemdb... rkb-explorer-os Ordnan... rkb-explorer-unlocode UN/LOC... universal-dependencies-treebank-dutch-lassysmall Univer... wordpress wordpress warsampo WarSampo doi CrossR... ASCDC-AS-NTUE-School-Art-Textbooks Archiv... biosamples-rdf BioSam... gene-expression-atlas-rdf Gene E... heartfailure Merite... wold World ... geolinkeddata GeoLin... shoah-victims-names Shoah ... reload Reposi... bioportal-spd Spider... racai-legalnero Romani... jp-textbook Japane... national-diet-library-authorities Web ND... jp-cos Japane... bioportal-aba ABA Ad... bioportal-basic-vertebrate-gross-anatomy Basic ... bioportal-bp BioPAX bioportal-bspo Spatia... bioportal-exo ExO bioportal-gro_x1 Cereal... bioportal-icps ICPS N... bioportal-imgt IMGT-O... bioportal-lhn Logger... bioportal-mao Multip... bioportal-mcv MIxS C... bioportal-mhc MaHCO ... bioportal-ms Mass s... bioportal-neomarkontology Neomar... bioportal-nonrctontology Non Ra... bioportal-peo Parasi... bioportal-pko PKO_Re bioportal-po Plant ... bioportal-po_x1 Plant ... bioportal-po_x2 Plant ... bioportal-propreo Proteo... bioportal-rctontology Random... bioportal-roleo Role O... bioportal-mego MeGO bioportal-mod Protei... bioportal-wbphenotype C. ele... bioportal-ypo Yeast ... ispra-lod-place ISPRA ... AISHE All In... opendatascotland-simd-housing-rank openda... amsterdam-museum-as-edm-lod Amster... opendatacommunities-societal-wellbeing-deprivation-imd-education-rank-la-2010 openda... clld-apics CLLD-A... clld-glottolog CLLD-G... dbtune-myspace DBTune... bio2rdf-dbsnp Bio2RD... university-plymouth-reading-lists Univer... apertium-rdf Aperti... tcga-roadmap TCGA R... linkedct LinkedCT nvs NERC V... gemet GEnera... entrez_gene Entrez... rubenverborgh Ruben ... rkb-explorer-crime Street... epa-tri EPA-TRI epa-frs EPA-FRS eea-vocabularies EEA Vo... eurostat-rdf Eurost... fao-geopolitical-ontology FAO ge... universal-dependencies-treebank-vietnamese Univer... tharawat-magazine-com tharaw... cz-orders Regist... calames Calames deutsche-biographie Deutsc... datos-bcn-cl Datos.... universal-dependencies-treebank-tamil Univer... cz-cuzk-cadastre-offices Cadast... bioportal-pw Pathwa... eu-parliament-media EU Par... eu-who-is-who EU Who... loc Linked... bioportal-rex Physic... lodac-bdls LODAC ... data-bnf-fr data.b... datos-bne-es datos.... thesaurus-w Thesau... nomisma_org Nomism... sears sears.com public-spending-in-greece Public... chronicling-america Chroni... universal-dependencies-treebank-old-church-slavonic Univer... eagle-i-tsu eagle-... opendatacommunities-impact-indicators-affordable-housing-starts openda... opendatacommunities-transparency-impact-indicators-affordable-housing-starts openda... semantic-xbrl Semant... bibbase BibBase bioportal-ato Amphib... bioportal-diagnosticont Diagno... bioportal-fbbi Biolog... bioportal-geospecies GeoSpe... bioportal-gfo Genera... bioportal-sbro Smokin... bioportal-taxrank Taxono... bioportal-tto Teleos... emn EMN iate-rdf IATE RDF statusnet-opensim-chat-eu status... opendatacommunities-transparency-impact-indicators-housing-starts openda... ciard-ring ciard-... universal-dependencies-treebank-chinese Univer... psh-subject-headings Polyth... vulnerapedia vulner... clld-afbo CLLD-afbo tekord TEKORD clld-sails CLLD-S... vivo-indiana-university VIVO I... sentiws Sentim... prefix-cc prefix.cc ASCDC-Linked-Taiwan-Artists Linked... getty-tgn The Ge... rss-500-nif-ner-corpus RSS-50... arrayexpress_e-mtab-104 Transc... opendatacommunities-households-projections-population openda... stitch-rameau RAMEAU... lcsubjects LCSubj... marc-codes MARC C... eagle-i-cau eagle-... statusnet-otbm-fr status... statusnet-qth-fr status... nhs-jargon NHS Ja... PGxLOD PGxLOD universal-dependencies-treebank-italian Univer... omwn-msa Wordne... opendatacommunities-dev-local-authority-services openda... esd-standards ESD St... statusnet-freelish-us status... statusnet-integralblue-com status... statusnet-mulestable-net status... statusnet-sebseb01-net status... typepad typepad CLaSSES Corpus... premon PreMOn lime Lingui... opendatascotland-simd-health-rank openda... betweenourworlds Betwee... garnicaplywood Garnic... bioportal-wbls C. ele... opendatacommunities-households-projections-totalhouseolds openda... eagle-i-tuskegee eagle-... hito HITO snik SNIK bioportal-thesaurus thesaurus ASCDC-_NTM-Formosan-Aborigines The Na... dcs-sheffield data.dcs jrc-names-mlode JRC-Na... associations associ... country-authority-list Countr... apertium-rdf-eu-en Aperti... eutc-productions Edinbu... bbc-programmes BBC Pr... cpv-2008 CPV 2008 bioportal-teddy Termin... news-100-nif-ner-corpus News-1... europeana-lod-v1 Europe... swedish-open-cultural-heritage Swedis... universal-dependencies-treebank-latin-proiel Univer... micro-coronavirus Corona... eagle-i-alaska eagle-... bio2rdf-taxon bio2rd... bio2rdf-mesh Bio2RD... sandrart-net sandra... nobelprizes Nobel ... linked-life-data Linked... epa-srs EPA-SRS thecontentwrangler-com The Co... data-incubator-our-airports Airpor... opencalais OpenCa... rkb-explorer-ecs School... tip TIP bis-linked-data Bank f... bluk-bnb Britis... ids Interc... national-diet-library-subject-headings Nation... bbc-music BBC Music eagle-i-howard eagle-... GTS Geolog... GTS-ont Geolog... bioportal-to Plant ... ogolod Orthol... cz-czso-unemployment-rate Unempl... orlando-womens-writing-linked-open-data-set The Or... cz-czso-job-applicants Job ap... geological-survey-of-austria-thesaurus Geolog... data-persee-fr Persée... omwn-fin FinnWo... NLW Neulat... webisalod WebIsALOD universal-dependencies-treebank-russian-syntagrus Univer... bio2rdf-dataset bio2rd... slod Linked... copyrighttermbank Copyri... https:w3id.orgdefNyOnLegal# Legal ... eagle-i-msm eagle-... bio2rdf-omim-resources bio2rd... bioportal-ddanat Dictyo... bioportal-fao Fungal... grrt Accomm... statusnet-my-status-tk status... cz-ovm-agendas Agenda... bioportal-soy SoyOnt... zhishi-me Zhishi.me opendatacommunities-transparency-input-indicators-local-authorities-working-with-troubled-families openda... apertium-rdf-eo-ca Aperti... epa-rcra EPA-RCRA opendatacommunities-societal-wellbeing-deprivation-imd-rank-2010 openda... cz-fulfillments Regist... iati-as-linked-data IATI a... rdflicense RDFLic... rkb-explorer-gdlc gdlc vivo-wustl VIVO W... vivo-university-of-florida VIVO U... HealthCare_Ontology Health... SocialLink Social... eagle-i-famu eagle-... linkedspending Linked... planetdata-project-wiki Planet... sors SORS world-wide-web-foundation World ... data-incubator-nasa NASA S... cz-ares-rzp Data a... aliada-scanbit-net aliada... hungarian-national-library-catalog Hungar... chemdb-estimatedProperties chemdb... cz-vavai-results Result... cz-vavai-organizations Organi... cz-vavai-projects R&D Pr... cz-vavai-research-plans Instit... TP-data Observ... plant-specimen digiti... mismuseos-gnoss Mis Mu... museosespania-gnoss Museos... taxonconcept-assets taxonc... oclc-fast Facete... omwn-dan DanNet... bioportal-epileponto Epilepsy morelab MORElab bio2rdf-bioportal Bio2RD... bio2rdf-orphanet Bio2RD... bio2rdf-sabiork Bio2RD... omwn-ron Romani... bioportal-co_wheat Wheat ... esd-toolkit ESD-To... linked-drugs Linked... data-incubator-climb Climb ... data-incubator-metoffice Metoff... data-incubator-smcjournals Scotti... opendatacommunities-input-indicators-local-authority-funding-from-government-grant openda... opendatacommunities-transparency-input-indicators-local-authority-funding-from-government-grant openda... http:sensormeasurement.appspot.comdatasetnaturopathy-dataset Naturo... twc-opendap twc-op... abc Summer... kupkb Kidney... uniprotkb UniProtKB opendatascotland-simd-employment-rank openda... bioportal-fbdv Drosop... rism Répert... gemeenschappelijke-thesaurus-audiovisuele-archieven Gemeen... prelex PreLex eur-lex-rdf EUR-Le... datahub datahub openlinksw-dataspaces openli... universal-dependencies-treebank-latin-ittb Univer... datos-artium-org datos-... salzburgerland-com-de Salzbu... ASCDC-Tibetan-Audio-Archive The Ti... oceandrilling-borehole oceand... chem2bio2rdf Chem2B... catalan-eurowordnet-lemon-lexicon-3-0 Catala... linked-open-numbers Linked... cinematheque-quebecoise-linked-open-data Cinéma... riese RDFizi... opendatacommunities-societal-wellbeing-deprivation-imd-housing-rank-la-2010 openda... surge-radio Surge ... omwn-heb Hebrew... linked-hypernyms linked... lotico Lotico hedatuz Hedatuz clld-wold CLLD-WOLD secold Source... statusnet-johndrinkwater-name status... sweto-dblp SwetoDblp cz-ctia-focus Focus ... cz-ctia-inspections Inspec... statusnet-sweetiebelle-net status... thist ThIST environmental-applications-reference-thesaurus EARTh printed-book-auction-catalogues Englis... universal-dependencies-treebank-czech Univer... ietflang ietflang knoesis-linked-sensor-data Linked... euskadi-farmacias Farmac... framester Framester naics-2012 NAICS ... bll-thesaurus Biblio... desaparecidos Projet... dbpedia-pt DBpedi... opendatacommunities-transparency-impact-indicators-neighbourhood-plans openda... ckan Compre... austrian_ski_racers Alpine... cornetto Cornet... data-incubator-discogs Discog... data-incubator-moseley Mosele... data-incubator-musicbrainz Data I... data-open-ac-uk data.o... dbpedia-lite dbpedi... dbtropes DBTropes dbtune-artists-last-fm DBTune... enakting-co2emission EnAKTi... enakting-mortality EnAKTi... enakting-population EnAKTi... event-media EventM... govtrack GovTra... iserve iServe... linkedlccn Linked... my-experiment myExpe... patents-data-gov-uk patent... rdfize-lastfm Last.F... rechtspraak Rechts... rkb-explorer-darmstadt Techni... rkb-explorer-era ERA - ... t4gm-info Thesau... talis-openlibrary Open L... the-view-from The Vi... uberblic Uberbl... uriburner URIBurner vivo-cornell-university VIVO C... vu-wordnet WordNe... zbw-pressemappe20 20th C... zitgist-musicbrainz MusicB... omwn-mcr Multil... greek-wordnet Greek ... biographical-directory-of-the-united-states-congress Biogra... bio2rdf-sider Bio2RD... universal-dependencies-treebank-english Univer... bag Basisr... linked-periodicals Linked... issa-agritrop ISSA A... https:www.childrensartmuseum.grLD-project Greek ... opendatacommunities-societal-wellbeing-deprivation-imd-score-2010 openda... nomenclator-asturias Nomenc... geospatialworld-net Geospa... statusnet-ludost-net status... bricklink Bricklink statusnet-bonifaz-ec status... apertium-rdf-eu-es Aperti... vivo-weill-cornell-medical-college VIVO W... yso-fi-allars yso-fi... yso-fi-ysa yso-fi... dbpedia-commons DBpedi... omwn-slv sloWNe... hebis-bibliographic-resources HeBIS ... opendatacommunities-households-2008 openda... oceandrilling-janusamp Ocean ... oceandrilling-codices Ocean ... olac OLAC M... roceeh-road ROCEEH... periodo Period... ASCDC-CTS-TV-Programs The Ch... wasabi WASABI... renewable_energy_generators Renewa... clld-ewave CLLD-E... universal-dependencies-treebank-irish Univer... allie-abbreviation-and-long-form-database-in-life-science Allie ... whisky-circle-info Whisky... linked-user-feedback Linked... universal-dependencies-treebank-russian Univer... universal-dependencies-treebank-ancient-greek-proiel Univer... cz-sao-check-actions Inspec... opendatascotland-simd-geographic-access-rank openda... universal-dependencies-treebank-ukrainian Univer... omwn-isl IceWor... los_metar Weathe... deustoentrepreneurship Deusto... LARK Lark de-gaap-ontology-lexicon de-gaa... linkedmarkmail Linked... rkb-explorer-kaunas Vytaut... WordFormationLatin Word F... aemet AEMET ... universal-dependencies-treebank-english-esl Univer... orkg Open R... bio2rdf-clinicaltrials Bio2RD... open-election-data-project Open E... universal-dependencies-treebank-finnish-ftb Univer... clean-energy-data-reegle Linked... open-energy-info-wiki OpenEI... ASCDC_-_CCP_Archive Datase... universal-dependencies-treebank-polish Univer... xlid-lexica xLiD-L... opendatacommunities-wellbeing-happy-yesterday-standard-deviation openda... proyectoapadrina Proyec... semanlink semanlink eea Europe... linked-open-vocabularies-lov Linked... princeton-library-findingaids Prince... productdb ProductDB zhishi-lemon zhishi... dbpedia-es DBpedi... eagle-i-vanderbilt eagle-... abs-linked-data Austra... apertium-rdf-eo-es Aperti... omwn-nor Norweg... medline medline english-wordnet Englis... gwa-ili Global... umthes German... near Near LucaniPharsalia Lucani... googleart-wrapper Google... opendatascotland-simd-crime-rank openda... statusnet-exdc-net status... statusnet-datenfahrt-org status... xwn Open M... asjp Automa... cz-sao-audited-subjects Audite... cz-ares-or Data a... biblioteca-escolar-digital-cita Biblio... isil-dbpedia ISIL->... anno ANNO framebase-schema FrameB... cz-ctia-confiscations Confis... sudocfr Sudoc ... eurosentiment EuroSe... comsode-d3-2 Requir... lichfield-spending Lichfi... universal-dependencies-treebank-japanese-ktc Univer... sli_galnet_rdf SLI Ga... taxonconcept-occurences taxonc... eagle-i-ccny-cuny eagle-... statusnet-equestriarp-net status... statusnet-mamalibre-com-ar status... universal-dependencies-treebank-estonian Univer... universal-dependencies-treebank-coptic Univer... statusnet-glou-org status... statusnet-kenzoid-com status... statusnet-m-kuttner-com status... statusnet-samnoble-org status... wordlift-io-blog-it WordLi... universal-dependencies-treebank-czech-cltt Univer... artenuevosmedios-gnoss Entorn... enipedia Eniped... aragodbpedia AragoD... ei2a Aragon... statusnet-hii-co-il status... serendipity Serend... entice-graph ENTICE... fu-berlin-euraxess EURAXE... smartlink SmartL... rkb-explorer-webconf webconf linked-open-camera Linked... tags2con-delicious tags2c... schemapedia Schema... semantic-web-grundlagen semant... eagle-i-harvard eagle-... elviajero El Via... Suface_Forestière_Mondiale_1990-2016 Suface... apertium-rdf-fr-ca Aperti... environment-agency-bathing-water-quality Enviro... opendatacommunities-societal-wellbeing-deprivation-imd-health-score-2010 openda... polymath-virtual-library Polyma... deutsche-nationalbibliografie-dnb Deutsc... bio2rdf-lsr Bio2RD... dbnary DBnary universal-dependencies-treebank-spanish Univer... LewisShort Lewis ... data-szepmuveszeti-hu data-s... nextweb-gnoss Next W... omwn-arb Arabic... icane ICANE lista-encabezamientos-materia Lista ... opendatascotland-simd-education-rank openda... omwn-swe Swedis... eurobarometer-standard Standa... twarql Twarql apertium-rdf-oc-es Aperti... ecco-tcp-linked-data ECCO-T... ce4r CE4R K... opendatacommunities-transparency-impact-indicators-households-in-temporary-accommodation openda... universal-dependencies-treebank-ancient-greek Univer... sandre Taxons greekchildrensartmuseum Greek ... bio2rdf-biomodels Bio2RD... geowordnet GeoWor... rkb-explorer-notube notube universal-dependencies-treebank-romanian Univer... msc Mathem... iptc-newscodes IPTC N... agris AGRIS Covid-on-the-Web Covid-... cz-cenia-pollution Integr... Organchem-Data Medici... omwn-ita MultiW... core CORE -... eventseer Eventseer cablegate cablegate universal-dependencies-treebank-bulgarian Univer... taxref-ld TAXREF... kore-50-nif-ner-corpus KORE 5... pscs-catalogue Produc... scholarometer Schola... chembl-rdf ChEMBL... opendatacommunities-homelessness-acceptances-per-1000 openda... caligraph CaLiGraph cz-ctia-sanctions Sancti... Thinkphile ThinkP... biomodels-rdf BioMod... dbtune-john-peel-sessions DBTune... opendatacommunities-imd-score-2010 openda... phoible Phonet... open-data-thesaurus Open D... libris LIBRIS eagle-i-ohsu eagle-... zbw-labs ZBW Labs courts-thesaurus Courts... UDante UDante... ASCDC-IHP-WCD Databa... eagle-i-montana eagle-... apertium-rdf-es-ca Aperti... deustotech Deusto... opendatacommunities-imd-environment-rank-2010 openda... omwn-iwn ItalWo... gnoss-com-a-social-and-semantic-platform GNOSS.... bulgarian_admissions_to_correctional_facilities Bulgar... drug-data-hifm Drug D... universal-dependencies-treebank-greek Univer... dws-group DWS-Group ontos-news-portal Ontos ... Cine_Figure Cine F... nextprot neXtProt universal-dependencies-treebank-catalan Univer... PREJUST4WOMAN_PROJECT PREJUS... eagle-i-uccaribe eagle-... universidad-de-cuenca-linkeddata Univer... universal-dependencies-treebank-turkish Univer... asn-us ASN:US german-labor-law-thesaurus German... cz-ctia-bans Bans o... lak-dataset Learni... omwn-pol plWord... universal-dependencies-treebank-spanish-ancora Univer... apertium-rdf-fr-es Aperti... cz-vavai-evaluation-2013 Evalua... universal-dependencies-treebank-galician Univer... istat-immigration ISTAT ... apertium-rdf-es-pt Aperti... universal-dependencies-treebank-czech-cac Univer... norpark NorPark norwegian-geo-divisions Norweg... reuters-128-nif-ner-corpus Reuter... socialsemweb-thesaurus Social... PrinParLat PrinPa... yahoo_geoplanet Yahoo ... southampton-ac-uk southa... opendatacommunities-impact-indicators-energy-efficiency-new-builds openda... statusnet-kathryl-fr status... BVMC Biblio... universal-dependencies-treebank-sanskrit Univer... statusnet-coreyavis-com status... eagle-i-psm eagle-... opendatacommunities-societal-wellbeing-deprivation-imd-income-rank-la-2010 openda... fu-berlin-eures Europe... universal-dependencies-treebank-dutch Univer... greek-administrative-geography greek-... VelezIndexTotiusArtis Velez ... open-bantu-isixhosa-lexicon Open B... cz-czso-social-service-facilities Social... linked-uspto-patent-data USPTO ... WHOnto Corona... europeana-sparql Europe... apertium-rdf-eo-en Aperti... universal-dependencies-treebank-hebrew Univer... omwn-bul BulTre... asit Atlant... cz-souhrnne-typy-ovm Summar... multext-east Multex... sparql-endpoint-status SPARQL... opendatacommunities-societal-wellbeing-deprivation-imd-employment-score-2010 openda... universal-dependencies-treebank-japanese Univer... isocat-metadata ISOcat... ASCDC-NMMBA-Aquatic-Animals-in-Taiwan Resear... opendatacommunities-wellbeing-worthwhile-mean openda... lexvo-org Lexvo.org germlex Linked... ctic-public-dataset CTIC P... epa-cdr EPA-CDR apertium-rdf-en-gl Aperti... greek_prisons_releases Greek ... parole-simple-lexinfo-ontology-lexicons Parole... omwn-por OpenWN... ichoose ichoose agrinepaldata AgriNe... vivo VIVO universal-dependencies-treebank-german Univer... ocd Italia... pleiades Pleiades glottolog Glottolog universal-dependencies-treebank-portuguese-br Univer... statusnet-tl1n-com status... springernaturescigraph Spring... galician-eurowordnet-lemon-lexicon-3-0 Galici... japan-radioactivity-stat Nation... bio2rdf-irefindex Bio2RD... english-index-of-multiple-deprivation-ranking-2010 Englis... cz-cenia-irz-chemicals Chemic... beneficiaries-of-the-european-commission EU: fi... ssf Lexico... cz-czso-job-applicants-and-unemployment-rate Job ap... traffic-scotland Traffi... omwn-ell Greek ... farmbio-chembl ChEMBL... data-hnm-hu data-h... apertium-rdf-pt-ca Aperti... iso-639-oasis Publis... freeyork-org Freeyork yovisto Yovist... Earthquake_case ESO Earthquake Emerge... congresspeople 2011 U... n-lex-as-linked-data N-Lex ... saldo-rdf SALDO-RDF panlex PanLex Face_Link Face Link statusnet-ldn-fai-net status... eagle-i-meharry eagle-... cz-czso-deaths-by-selected-causes-of-death Deaths... open-data-risp Open D... green-competitiveness-gnoss Green ... eagle-i-utsa eagle-... cz-czso-average-salaries Averag... opendatacommunities-households-accommodated-per-1000 openda... newborn-photography-maternity-photoshoot-shivani-goyal Shivan... ecb-statistics-linked-data Europe... language-authority-list Langu... brazilian-politicians Brazil... Latin_Vallex2.0 Latin ... bncf-ns Thesau... dbpedia-spotlight-nif-ner-corpus DBpedi... data-gov-ie DataGo... opendatacommunities-net-additional-dwellings openda... rkb-explorer-webscience Web Sc... ASCDC-CRB Databa... dbkwik DBkWik eagle-i-dartmouth eagle-... universal-dependencies-treebank-portuguese Univer... nom Nomenc... opendatacommunities-housing-market openda... clld-phoible CLLD-P... dbpedia-abstract-corpus DBpedi... universal-dependencies-treebank-slovenian Univer... salzburgerland-com-en Salzbu... ub-mannheim-linked-data Linked... oreilly oreilly universal-dependencies-treebank-arabic Univer... english-heritage-periods-list Englis... jamendo-dbtune DBTune... eumida-linked-data EUMIDA... fu-berlin-medicare MediCare opendatascotland-simd-income-rank openda... unodc UNODC ... opendatascotland-graph-education-pupils-by-school-and-datazone openda... universal-dependencies-treebank-swedish-lines Univer... dbtune-classical DBTune... omwn-als Albane... opendatacommunities-societal-wellbeing-deprivation-imd-rank-la-2010 openda... opendatacommunities-impact-indicators-housing-starts openda... universal-dependencies-treebank-english-lines Univer... nvd Norsk ... eventkg EventKG muziekweb Muziekweb apertium-rdf-ca-it Aperti... aegp-spanish-textile-and-clothing-association AEGP, ... verrijktkoninkrijk Verrij... sztaki-lod Nation... basque-eurowordnet-lemon-lexicon-3-0 Basque... universal-dependencies-treebank-kazakh Univer... omwn-cwn Chines... linked-crunchbase Linked... universal-dependencies-treebank-swedish Univer... ASCDC-AS-TFD-Fish-Species Taiwan... rainis-and-aspazija-linked-digital-collection "Raini... berlios berlios debian-package-tracking-system Debian... linked-stockindex Linked... apertium-rdf-es-ro Aperti... cipfa CIPFA notIdentifier NITP stone-tech-square-data Stone ... omwn-eng Prince... eagle-i-cdrewu eagle-... vivo-scripps-research-institute VIVO S... universal-dependencies-treebank-latvian Univer... universal-dependencies-treebank-slovak Univer... saldom-rdf SALDOM... oceandrilling-forams Ocean ... masc-bn-nif MASC-B... chemdb-thermochemistry chemdb... universal-dependencies-treebank-galician-treegal Univer... testee xxxxx cz-sidc-drug-prices List o... cz-sidc-drugs Medici... universal-dependencies-treebank-finnish Univer... BibSonomy BibSon... eagle-i-xula eagle-... universal-dependencies-treebank-latin Univer... norpark2 Parkin... European_Patent_Information EPO pa... CPC Cooper... omwn-nld Open W... FADN_(2019) Farm A... gemet-annotated gemet-... opendatacommunities-service-expenditure openda... loius Linkin... bpr BPR ? ... universal-dependencies-treebank-slovenian-sst Univer... dbtune-audioscrobbler DBTune... utpl-lod Univer... twc-ieeevis IEEE V... opendatacommunities-impact-indicators-planning-applications-granted openda... masc Manual... ontobeef-domain OntoBe... arthroscopy Arthro... disgenet DisGeNET omwn-slk Slovak... NITP NIT Patna geoecuador GeoEcu... enakting-energy EnAKTi... the-european-library-open-dataset The Eu... AntiqueCarsCollection Antiqu... global-hunger-index-2011 Global... universal-dependencies-treebank-swedish-sign-language Univer... opendatacommunities-societal-wellbeing-deprivation-imd-employment-rank-la-2010 openda... cz-cuzk-legal-relationships-documents Code l... cz-czso-regions Struct... bio2rdf-gendr Bio2RD... PubChem_RDF PubChe... universal-dependencies-treebank-french Univer... open-data-euskadi Open D... Smart_POI_dataset Smart ... rubentaelman Ruben ... cz-sao-check-actions-law List o... wordlift-io-blog-en WordLi... organic-edunet Organi... cz-czso-selected-indicators-of-public-health Select... apertium-rdf-oc-ca Aperti... opendatacommunities-households-social-lettings-general-needs-lettings-prp-household-composition openda... opendatacommunities-imd-rank-2010 openda... universal-dependencies-treebank-gothic Univer... opendatacommunities-imd-crime-rank-2010 openda... athelia-rfid Atheli... uniprot-metadata unipro... grrp Accomm... imagesnippets Images... cz-eh-1-atc ATC gr... omwn-tha Thai W... government-web-integration-for-linked-data GovWIL... opendatacommunities-wellbeing-lsoa-happy-yesterday-mean openda... apertium-rdf-en-es Aperti... data-cnr-it Open D... dbtune-magnatune DBTune... CoDa Cooper... influence-tracker-dataset Influe... salzburgerland-com-it Salzbu... wn-wiki-instances Wordne... omwn-hrv Croati... omwn-jpn Japane... alpino-rdf ALPINO... vivo2doi vivo2doi pdev-lemon PDEV-L... opendatacommunities-societal-wellbeing-deprivation-imd-health-rank-la-2010 openda... opendatacommunities-imd-income-rank-la-2010 openda... apertium-rdf-en-ca Aperti... dev8d dev8d semsol-crunchbase Semant... opendatascotland-graph-simd-rank openda... Uganda-Disasters-rdf-data_ Uganda... apertium-rdf-pt-gl Aperti... jita JITA C... reactome-rdf Reacto... enakting-nhs EnAKTi... linked-tcga Linked... cz-sidc-drug-ingredients Active... dataturcyl-lod-for-tourists-in-castilla-y-leon-spain DATATU... The Linked Open Data Cloud from lod-cloud.net image/svg+xml

The Linked Open Data Cloud (view interactive version from lod-cloud.net)

Linked Open Data

The Linked Open Data Cloud

Principles of Linked Data

How does it work?

Concepts

  • Data should be described in a standardized way
  • URIs refer to the definition of a data category

Statements

“The sky is blue” = “The sky has the color blue”

  • Semantic triple:
    • Subject - sky
    • Predicate - has the color
    • Object - blue

Examples

  • Properties

What can you do with Wikidata?

The Wikidata API

screenshot of timeline game

The game Wikitrivia by Tom J. Watson uses the Wikidata API

Uses

  • Building open-source web resources
  • Add data and images easily with digital publishing tools like Juncture
  • Enhance a dataset: add Wikidata entity IDs to discover more information
  • Dataset discovery: add identifiers from other data resources to wikidata

Wikidata Queries

Query structure

Genre queries

Editing Wikidata